Sunish, there is an even better question. Why all laptops have only USB, instead of USB and RS232, since those people are manufacturing an entire line of cables intended to replace USB with RS232? http://www.ftdichip.com/Documents/DataSheets/Modules/DS_TTL-232R_CABLES_V201.pdf
<http://www.ftdichip.com/Documents/DataSheets/Modules/DS_TTL-232R_CABLES_V201.pdf> Vasile On Mon, Jul 26, 2010 at 12:03 PM, Sunish Issac <[email protected]> wrote: > Usb to serial cables are available here in India for approx 4.5USD. > > I don't why ftdi is charging 20$ ? > > > Sunish > > > On Mon, Jul 26, 2010 at 1:15 PM, Sebastien Lelong < > [email protected]> wrote: > >> Hi Joep, >> >> Initially, I wanted to let some space to solder/glue/... a module like >> this one: >> >> - >> http://cgi.ebay.com/FTDI-UM232R-module-USB-serial-UART-converter-AVR-PIC-/160429940508?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item255a5e9f1c#ht_3339wt_913 >> - http://www.sparkfun.com/commerce/product_info.php?products_id=198 >> - http://www.sparkfun.com/commerce/product_info.php?products_id=8165 >> - http://www.sparkfun.com/commerce/product_info.php?products_id=718 >> - >> http://cgi.ebay.com/PC-USB-RS232-Module-Based-TTL-FTDI-FT232BM-BL-Chip-/320508485967?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item4a9fcb614f#ht_2746wt_981 >> >> They cost basically the price of your suggested FTDI cable, but may easier >> to find ? >> >> This module costs 5$ on ebay, male connector (weird): >> >> - >> http://cgi.ebay.com/USB-RS232-Module-Board-CP2102-Breakout-/130337003713?cmd=ViewItem&pt=BI_Electrical_Equipment_Tools&hash=item1e58b0d8c1#ht_1128wt_913 >> >> I first thought FTDI cable was too much expensive, but they compare quite >> well with these modules (20$ / cable, . Users could still use their own >> serial module with adaptations if needed. Do you think all FTDI cable have >> the same pinout ? >> >> Cheers, >> Seb >> >> >> >> 2010/7/24 Joep Suijs <[email protected]> >> >>> If it is the ftdi chip that you want, take an 'ftdi cable' >>> http://www.ftdichip.comalem/Products/EvaluationKits/TTL-232R.htm<http://www.ftdichip.com/Products/EvaluationKits/TTL-232R.htm> >>> >>> As i suggested before, change the jaluino serial connector pinout to >>> match this cable is a good idea in any case. >>> Joep >>> >>> >>> 2010/7/24 funlw65 <[email protected]>: >>> > As I imagined for the first time, when it was only about the >>> > microcontroller on a card inserted in ATmega328 socket, if the PIC is >>> > under the card, then you can insert a shield. But as things turned >>> > out, I think that Sebastien wants only to take advantage from the FTDI >>> > chip on the Arduino board and use it as development board, with >>> > wires... >>> > Or maybe he will use SMD components... >>> > >>> > Another ideea is to use a flexible "board"... but a proper name will >>> > be "Squid" :P >>> > >>> > Vasi(funlw65) >>> > >>> > On Jul 24, 9:23 am, Joep Suijs <[email protected]> wrote: >>> >> Hi Seb, >>> >> >>> >> Just wondering, (how) can you use shields on a arduino board with the >>> >> cuckoo installed? >>> >> >>> >> Joep >>> >> >>> >> 2010/7/23 Sebastien Lelong <[email protected]>: >>> >> >>> >> > Hi guys, >>> >> >>> >> > One step further... I've created a first schematic for Jaluino >>> Cuckoo, >>> >> > attached as PNG file: >>> >> > - I've copied ISCP part from Jaluino Medium >>> >> > ( >>> http://justanotherlanguage.org/sites/default/files/jaluino_medium_v13... >>> ). >>> >> > - Xtal option: with 2 jumpers, user can decide to use Arduino Xtal >>> >> > (16MHz), Cuckoo's onboard Xtal (20MHz), or no Xtal at all for >>> internal >>> >> > clock, low power usage (without being able to use pins though). Note >>> with >>> >> > 18f25K22, using Arduino's Xtal gives the highest performance with x4 >>> PLL >>> >> > (not possible with 20MHz) >>> >> > - I added two I²C resistor, as an option. I wasn't able to find >>> them on >>> >> > Arduino schematic to map them >>> >> > ( >>> http://arduino.cc/en/uploads/Main/arduino-duemilanove-schematic.pdf). I >>> >> > think it can be convenient to select I²C master/slave this way. >>> >> > - There's a RESET push button on Cuckoo's board, in addition to >>> the one >>> >> > found on Arduino. This could be interesting when using Cuckoo as a >>> >> > standalone board, as Mike suggested, but this would need to act on >>> two >>> >> > buttons to reset it when plugged on Arduino... Maybe I'll add a >>> jumper to >>> >> > select which Reset to use. I *think* (means I'm not sure) Arduino's >>> Reset >>> >> > schematic should work with Cuckoo. >>> >> >>> >> > Before I start to pull my hair with the PCB, do you any comments, >>> >> > suggestions, ... ? >>> >> > Cheers >>> >> > Seb >>> >> > 2010/7/16 Sebastien Lelong <[email protected]> >>> >> >>> >> >> Hi guys, Vasi, >>> >> >> Indeed pin mapping wasn't easy. Despite the great number of feature >>> coming >>> >> >> with 18f25K22, I had to make compromise and add limitations... >>> >> >> See: >>> http://justanotherlanguage.org/content/jaluino/blog/cuckoo-meets-arduino >>> >> >> Vasi, I know this is quite horrible to read :) but I also know >>> you've been >>> >> >> there before, I would certainly appreciate if you could check this >>> mapping >>> >> >> and tell me what you're thinking about it. I tried to log my >>> thoughts >>> >> >> explaining my choices, I hope you can follow them ! >>> >> >>> >> >> Cheers, >>> >> >> Seb >>> >> >>> >> >> 2010/7/12 funlw65 <[email protected]> >>> >> >>> >> >>> Sebastien, >>> >> >>> If you succeed in mapping this board, then an Arduino clone will >>> be >>> >> >>> far easier for you. I can assure you! >>> >> >>> >> >>> Vasi()funlw65 >>> >> >>> >> >>> On Jul 12, 5:45 pm, Sebastien Lelong <[email protected]> >>> >> >>> wrote: >>> >> >>> > Hi guys, >>> >> >>> >> >>> > As a log, summary and some sort of specification requirements >>> (say it >>> >> >>> > fast), >>> >> >>> > here's a page I've written, hopefully describing what I have in >>> mind. >>> >> >>> >> >>> > >>> http://justanotherlanguage.org/content/jaluino/blog/jaluino-cuckoo >>> >> >>> >> >>> > Feel free to comment... >>> >> >>> >> >>> > Cheers, >>> >> >>> > Seb >>> >> >>> >> >>> > 2010/7/6 Sebastien Lelong <[email protected]> >>> >> >>> >> >>> > > Hi guys, >>> >> >>> >> >>> > > 2010/7/5 m...@watty <[email protected]> >>> >> >>> >> >>> > >> 44 pin or 64pin 18F67J50 SMD with option for USB mini or >>> micro >>> >> >>> >> >>> > > connector on cuckoo board >>> >> >>> >> >>> > > Such a board would act as an extension of existing Arduino, >>> but I >>> >> >>> > > doubt it >>> >> >>> > > can be done without SMD components, right ? >>> >> >>> >> >>> > >> 6 pin ICSP on cuckoo too >>> >> >>> >> >>> > > this seems mandatory, indeed, even if it takes room. >>> >> >>> >> >>> > >> option for on board crystal. >>> >> >>> >> >>> > > What about selecting onboard Xtal (16MHz for Arduino 2009) or >>> >> >>> > > internal >>> >> >>> > > clock ? I could add another Xtal on Cuckoo board but I have >>> doubts >>> >> >>> > > about >>> >> >>> > > room... >>> >> >>> >> >>> > >> option for 5V to 3V regulator >>> >> >>> >> >>> > > Do you mean to power the PIC ? >>> >> >>> >> >>> > >> Can be used in Arduino or as standalone module. >>> >> >>> >> >>> > > That would be great, something like >>> >> >>> > >http://www.solarbotics.com/products/kardw/. >>> >> >>> >> >>> > > About PIC selection, I've found 18f26k22 as an interesting >>> candidate: >>> >> >>> > > - 64KB memory >>> >> >>> > > - 2 * USART >>> >> >>> > > - I2C *and* SPI (2 * MSSP) >>> >> >>> > > - independant analog pins, easier to map pins >>> >> >>> > > - clock up to 64MHz, 16MIPS >>> >> >>> > > - 3 external interupts >>> >> >>> > > - 2 * PWM output >>> >> >>> >> >>> > > but not in production... Little brother 18f25k22 can be >>> sampled, but >>> >> >>> > > "only" >>> >> >>> > > have 32KB memory. I'll try this one I guess. On the other side >>> of the >>> >> >>> > > nest, >>> >> >>> > > Arduino provides: >>> >> >>> > > - 1 USART >>> >> >>> > > - 2 external interupts >>> >> >>> > > - SPI >>> >> >>> > > - I2C within ADC pins >>> >> >>> > > - 6 PWM channels (this can't be defeated...) >>> >> >>> >> >>> > > This can be cuckooed by 18f25k22 :) >>> >> >>> >> >>> > > >>> http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en546240 >>> >> >>> >> >>> > > Cheers (Groeten) >>> >> >>> > > Seb >>> >> >>> >> >>> > >> On Jul 5, 4:29 pm, Sebastien Lelong < >>> [email protected]> >>> >> >>> > >> wrote: >>> >> >>> > >> > Hi guys, >>> >> >>> >> >>> > >> > The Cuckoos are a bird family, known to be brood parasite. >>> Mother >>> >> >>> > >> > Cuckoo >>> >> >>> > >> > lays its eggs on other bird's nest. Baby Cuckoo will be >>> brooded >>> >> >>> > >> > and when >>> >> >>> > >> > hatched, will clear the nest from other eggs. It will be >>> fed, for >>> >> >>> > >> > free, >>> >> >>> > >> > until it often reaches ten times the size of its parents >>> (which >>> >> >>> > >> > seem >>> >> >>> > >> dumb >>> >> >>> > >> > enough not to mention the subterfuge). >>> >> >>> >> >>> > >> > This gave me an idea for another Jaluino family. Codename: >>> Jaluino >>> >> >>> > >> Cuckoo ! >>> >> >>> >> >>> > >> > The idea is to unplug ATMega168 from Arduino Duemilanove >>> and plug >>> >> >>> > >> > a >>> >> >>> > >> > Microchip PIC instead. A small PCB would probably needed to >>> map >>> >> >>> > >> > pins. I >>> >> >>> > >> had >>> >> >>> > >> > a look potentials PICs, like 18F2680, 18F2620. 18F2550 >>> isn't that >>> >> >>> > >> > useful >>> >> >>> > >> as >>> >> >>> > >> > there's no USB on Arduino Duemilanove. It would need UART, >>> I²C, >>> >> >>> > >> > PWM, ADC >>> >> >>> > >> > (preferably with independent pin), and should run as fast >>> as >>> >> >>> > >> > possible >>> >> >>> > >> with a >>> >> >>> > >> > 16MHz externak Xtal. >>> >> >>> >> >>> > >> > Does it sound doable ? Suggestions ? Warnings ? >>> >> >>> >> >>> > >> > Cheers, >>> >> >>> > >> > Seb >>> >> >>> > >> > -- >>> >> >>> > >> > Sébastien Lelonghttp://www.sirloon.nethttp://sirbot.org >>> >> >>> >> >>> > >> -- >>> >> >>> > >> You received this message because you are subscribed to the >>> Google >>> >> >>> > >> Groups >>> >> >>> > >> "jallib" group. >>> >> >>> > >> To post to this group, send email to [email protected] >>> . >>> >> >>> > >> To unsubscribe from this group, send email to >>> >> >>> >> >>> > >> [email protected]<jallib%[email protected]> >>> <jallib%[email protected]<jallib%[email protected]> >>> > >>> >> >>> > >> . >>> >> >>> > >> For more options, visit this group at >>> >> >>> > >>http://groups.google.com/group/jallib?hl=en. >>> >> >>> >> >>> > > -- >>> >> >>> > > Sébastien Lelong >>> >> >>> > >http://www.sirloon.net >>> >> >>> > >http://sirbot.org >>> >> >>> >> >>> > -- >>> >> >>> > Sébastien Lelonghttp://www.sirloon.nethttp://sirbot.org >>> >> >>> >> >>> -- >>> >> >>> You received this message because you are subscribed to the Google >>> Groups >>> >> >>> "jallib" group. >>> >> >>> To post to this group, send email to [email protected]. >>> >> >>> To unsubscribe from this group, send email to >>> >> >>> [email protected]<jallib%[email protected]> >>> . >>> >> >>> For more options, visit this group at >>> >> >>>http://groups.google.com/group/jallib?hl=en. >>> >> >>> >> >> -- >>> >> >> Sébastien Lelong >>> >> >>http://www.sirloon.net >>> >> >>http://sirbot.org >>> >> >>> >> > -- >>> >> > Sébastien Lelong >>> >> >http://www.sirloon.net >>> >> >http://sirbot.org >>> >> >>> >> > -- >>> >> > You received this message because you are subscribed to the Google >>> Groups >>> >> > "jallib" group. >>> >> > To post to this group, send email to [email protected]. >>> >> > To unsubscribe from this group, send email to >>> >> > [email protected]<jallib%[email protected]> >>> . >>> >> > For more options, visit this group at >>> >> >http://groups.google.com/group/jallib?hl=en. >>> > >>> > -- >>> > You received this message because you are subscribed to the Google >>> Groups "jallib" group. >>> > To post to this group, send email to [email protected]. >>> > To unsubscribe from this group, send email to >>> [email protected]<jallib%[email protected]> >>> . >>> > For more options, visit this group at >>> http://groups.google.com/group/jallib?hl=en. >>> > >>> > >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "jallib" group. >>> To post to this group, send email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]<jallib%[email protected]> >>> . >>> For more options, visit this group at >>> http://groups.google.com/group/jallib?hl=en. >>> >>> >> >> >> -- >> Sébastien Lelong >> http://www.sirloon.net >> http://sirbot.org >> >> -- >> You received this message because you are subscribed to the Google Groups >> "jallib" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]<jallib%[email protected]> >> . >> For more options, visit this group at >> http://groups.google.com/group/jallib?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "jallib" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<jallib%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/jallib?hl=en. > -- You received this message because you are subscribed to the Google Groups "jallib" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jallib?hl=en.
